High alumina firebricks are classified according to the alumina content which is from lowest 48% to highest 95%, manufactured from mineral of bauxite, corundum, etc. By mixing, press-forming, drying, sintering and machining. High alumina bricks feature stable mechanical strength and thermal shock resistance, with high refractoriness of no lower than 1880¡æ, high alumina bricks are commonly used as refractory lining exposed to heat directly or backup insulation linings in various types of industrial kiln or laboratory furnace.
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Different kinds of industrial furnace.Such as:Hood furnace, heating furnace, cracking furnace, heat treatment furnace, shuttle kiln, tunnel kiln, roller kiln, enamel kiln, ceramic kiln ceiling and wall and insulation lining materials. Item Index Al2O3 75 85 SiO2 22 12 CCS Mpa 90 100 MOR Mpa 16 16 RUL 1500 1550 Thermal shock resistant 900 (times) 20 30 CC 6 5 HR W/m.k (
Checker bricks is strong is widely recognized and accepted by the world community an iron heat exchange capacity, large thermal storage area, ventilation smooth, heat regenerator many small thermal resistance and other superior characteristics. Checker bricks is a heat transfer medium, used in blast furnace stove heat storage room, usually ordered in thermal storage room, play a role in regenerative between "burning furnace cycle" in between "blast period" is Through the convective heat exchange and radiation heat exchange, the cold air heated to hot air. The checker bricks are mainly used in the regenerator of the hot blast stove, and the checker bricks are arranged in an orderly manner. According to the technical requirements of different temperature areas, the general use of silicon lattice brick, clay brick, etc., in some hot air stove, there are also selected high alumina brick, mullite brick etc.
Descriptions: High-alumina bricks are made from bauxite, a naturally occurring material containing aluminum hydroxide (al[oh]3) and kaolinitic clays. These raw materials are roasted to produce a mixture of synthetic alumina and mullite. By definition high-alumina bricks contain between 60 and 95 percent alumina and much more robust than fireclay refractories at high temperatures and in basic environments. In addition, these bricks exhibit better volume stability and abrasion resistance. Applications: High-alumina bricks are used in blast furnaces, blast-furnace stoves, liquid-steel ladles, steel refining furnaces, glass tanks, ceramic kilns, enamel kilns, rotary cement kilns and other vVarious kilns and furnaces.
Refractory Brick's Standard size ( 230x115x75 mm ) But we make all sizes of bricks as per Requirement. Alumina ( AlO) - 70 % The weight of bricks is 5.2 KG Bulk density (B.D) - 2.6 Apparent porosity % Max - 22 Ferric ( FeO) % Max - 2.5 Cold Crushing Strength - 500 kg/cm RUL Temperature % MAX - 1480 PLC Temperature % MAX - 1500
Our high alumina brick is manufactured with selected bauxite chamotte as main material, fired at high temperature by advanced process with strict quality control. High alumina, as the name tells, meaning the content of alumina percentage is higher than 45. And alumina is one of the most chemically stable oxides, it offers excellent hardness, strength and spalling resistance. Our high alumina brick is widely used in industries which need heat insulation, such as the linings of masonry furnaces, hearth and shaft of blast furnaces, ceramic kilns, glass tanks, cement rotary kilns and so on.
Janta Group is one of the largest manufacturer of Refractory Bricks which are widely used in various industries for various purposes. We have a three production unit with large production capacity for manufacturing High Alumina Bricks (Refractory Bricks). We are manufacturing 25% Alumina to 85% Alumina Bricks. Our range includes standard size and special size of Bricks, Burner Blocks, Tiles, Slabs, Blocks, or customer's required size. Our Refractory Bricks are manufactured from high-grade raw materials, which are procured from trusted and reliable vendors across the world. Our clients can avail this comprehensive variety of Refractory Fire Bricks at market leading prices. Our Refractory bricks are widely used in the construction of furnaces, kilns, fireplaces and fireboxes which can withstand high temperatures and are suitable for fireplaces in the industries and other commercial building.
Product Introduction: High alumina brick refers to refractory products with Al2O3 content higher than 48%.It is made of bauxite or other raw materials of high alumina content .The refractoriness of high alumina brick can be more than 1770 C . According to the content of Al2O3, high alumina bricks are usually divided into three grades: Grade I Al2O3 content 75%; Grade II Al2O3 content is 60 75%; Grade III Al2O3 content is 48~60%. Application: High alumina bricks are mainly used for lining blast furnaces, hot blast furnace, electric furnace roofs, blast furnaces,reverberatory furnaces, and rotary kilns. Features: 1.Low creep. 2.Good slag resistance. 3.Strong thermal shock stability. 4.Good erosion resistance.
Magnesia Bricks Description Magnesia Bricks are alkaline refractory materials. These products have over 90% magnesium oxide content and adopt periclase as the principal crystalline phase. Magnesia Bricks can be divided into two categories of Burnt Magnesia Bricks and Chemical Bonded Magnesite Brick. They have excellent performance of superior high temperature mechanical strength and volume stability. Magnesia Bricks can service in the high temperature of 1750.. They are ideal products for glass furnace application. Magnesia Bricks Features: It is a kind of alkaline refractory product with periclase as main phase magnesite-alumina spinel clinker as basic material. the product has such characteristics as good temperature vibration, good strength and volume stability in high temperature. Magnesia Bricks Application Basic open-hearth furnace for steelmaking Electric furnace bottom and wall Permanent lining of oxygen converter Non-ferrous metal metallurgy furnace Hyperthermia tunnel kiln Lining of rotary cement kiln Heating furnace bottom and wall Regenerative chamber of glass furnace Magnesia Bricks Properties High Refractoriness Good alkaline slag erosion resistance High apparent initial softening temperature Good thermal conductivity High thermal expansion Magnesia Bricks Manufacturing Process Burnt Magnesia Bricks are manufactured with magnesite clinker as the raw material and fired in the high temperature of 1550~1600 after smashing, burdening, mulling and molding. High-purity products can be fired in the temperature that over 1750. Chemical bonded magnesite brick is produced with certain chemical bonding through mixing, molding and drying.
PRODUCT DATA SHEET ACID RESISTANT BRICK Material : RED SHALE Type Acid Resistant Brick Size (mm) 230 (LENGTH) X 115 (WIDTH) X 100,76,65,50,40,38,30,25 (THICK) Specification : ASTM C279, ASTM C410, IS 4860-1982 DESCRIPTION : We offer premium quality acid resistant bricks Red â?? Shale , tiles and special shapes. We also offer customized sizes as per clients' requirements. Our acid bricks comply with ASTM C279 Type-III, ASTM C410 Type H, L, and Indian Standard 4860 - 1982 Class-I for all applications where low absorption and high acid resistance is required. FEATURES OF ACID RESISTANT BRICK: Excellent resistant against wide range of chemicals except hydrofluoric acid, high abrasion resistance, low wearing properties, High Thermal resistant to sudden change in temperature AREA OF APPLICATION: Chemical Analysis (Average) Acid and Alkali Storage Tank Farms Demineralization plants and Water treatment plants Chimney inside lining, FGD linings Towers and Columns Process Vessels and Tanks Sewerage Treatment Plants and Lines Industrial Flooring and Bund Areas Chimney and Flue Gas Linings Hoppers and Chutes SiO266.4 Al2 0324 TiO21.1 Fe2 O31.1 K2 O + Na2 O2.5 NOT RECOMMENDED: HF acid or other fluoride solutions Heavy thermal shock Typical Physical Properties of GANESHAS Acid and Chemical Resistant Brick Characteristic RED SHALE ACID RESISTANT BRICK Test Standard Bulk Density, gm/cc - 2.3 to 2.35 ASTM C-20 -Water Absorption, % - 0.1 to 1.5 IS 4860-1968 Apparent Porosity, % -0.5 to 1.75 S 4860 Acid Solubility (H2SO4), Loss in Mass,% -0.1 to 1.8 ASTM C-279 Modulus of Rupture, PSI -2133 to 3555 ASTM C-67 Compressive Strength, Kg/cm2 - 700-900 IS 4860-1968 Abrasion Resistant , Volume in mm3 -69 to 85 EN 102 Surface Hardness, MOHS Scale - 7
